Device for actuating the coupling and the brake in automobiles



.lilly 17, 1928. 1,677,718

V. JESSEN DEVICE FOR ACTUATING THE OOUPLING AND THE BRAKE IN AUTOMOBILES Filed Nov.v26, 1926 l 2 Shets-,Sheet l` July I7, 1928.' `17,677,718

' V. JESSEN DEVICE FOR ACTUATING THE COUPLING AND THE BRAKE IN AUTOMOBILES Filed Nov. 26, 1926 2 sheets-sheet 2 INVENTOR.

0 coupled to the motor,

55 rection of the arrow, tilljit Patented July 1,7, 1928.

UNITED STATES 1,671,718 PATENT oFI-lcssgA VICTOR JESSEN, 0F COPENHAGEN, DENMARK.

- DEVICE FOR ACTUATING THE COUPLING'AND THE BRAKE IN AUTOMOBILES.

Application iled November 26, 1926. Serial No. 150,972..

As is well-known the coupling and the brake in automobiles usually are operated by separate pedals.

My invention relates to a device connecting the coupling and the brake in such a manner that, independently of one another orimmediately after another, they can be acted upon by means of the same pedal, without needing to be altered or displaced,

l nor to be specially chosen or 'new constructed.

In'th accompanying drawing my invention is illustrated in connection with a coupling and .a brake of wellknown kind.

i Figure 1 shows the total arrangement, in

Y side view, partly in section,

Figs. 2 and 3 the device itself in differentV positions, on a larger scale,

- Fig. 4 the same in section by the line4 1 -a,

"Fig 3,.

Fig. 5 a modied pedal .arrangement and 6 the same in section by the line B-B,

The pedal-arm 1 according tovmy inven- 5 tion isconnected with one half 2 of a clawcoupling, the other half part of which being shaped' as a ring 3, that by a groove-connec- -tion'll can be displaced on the coupling shaft v 5. About the shaft 5 is placed a muli. 6,

0 whichin one end is'screw-cut, corresponding Nto an interior ,screw-cut part of the ring 3,

j and in the other end, by a groove-connection 7 or the like firmly 'lodged in a guide 8 placed for instance on the side 9 ofthe car, the couplingfpart 2 Vbeing lodged about in the middle of the muti 6.

' The coupling parts 2 and 3 are placed thus in relation to one another that they engage With another, when the carriage shaft is and the pedal-arm 1,

under influence of .a spring 10 belonging to 4the coupling, occupies its backwards slanting position. In this position the pedalarm, by the claw-coupling, is connected with =5 the shaft 5.

When the pedal-arm against the action of the spring 10 is pressed forward by the foot, the bar-connection 11 oft-he coupling disconnectsv the pressure-disk, and at the same i0 time the shaft 5 is turned owing to the engagement of the claw-coupling Vpartsr2 and 3, the shaft 5 being lodged in the mantle 12 of the coupling. Y By the turning of the shaft 5 thecouplng part 3 is displaced in the digets out of engagement with the part 2, Figs.- 3 and 4, and

' tooth 21 on said the motor-coupling is disconnected.- That disconnection has taken place, is felt by the restralning effect of a little ball 13, which be- 1ng lodged inthe part 2 and influenced by a spring 14: engages with acorresponding groove in the-guide 8. The pedal-armoecupies then itsmiddle position, in which it is disconnected from the shaft 5, the vmotor coupling being inactive, and the brake uninfluenced, from which position the pedalarm, if released, can be brought back by the spring 10. If on the contrary the pressure on the pedal-arm 1 in forward v.going direction is continued, the engagement of the ball 13 or of another weakly binding organ with the guide 8 is disconnected and the brakebar 15, which is connected with the pedalf `the pedal-arm 1 turning loosely about the .shaft 5.

The pedal-arm 1, being released, then under influence of a spring 17 belonging to the brake will be brought back to the middle position, whereafter the shaft 5 under the action of the spring 10 will be turned and at the same time the ring 3 be displaced in Va. direction opposite to the arrow until engagement with the coupling part 2. is obtain# ed andthe pedal-arm occupies its backwards slanting position so that the motor-coupling again is put into activity. Inv order to cause the parts 2 and 3 to enter into engagement in a smoothly gliding manner, their respective surfaces are cut asla'nt as shown in' Fig. 3. Y l i By using my device the result is obtained that, by one coupling and braking can take place immediately after one another, and that the coupling can be operated independently of the brake, without any risk of the motor stopping, as wrong handling cannot'be thought of.

My device may be varied in details, with'- ut departing from the principle of my invention. Y

. Y In a modification the brake-bar 15, instead of vbeing directly connected with the pedalarm 1, can in its outer-end be connected with a coupling .shaped portion 19 lodged on the I-shaped portion coupling shaped part 19 is suitably guided in front of the middle position of the pedalarm 1,so that the'brakebar (by the coupling 19) is acted upon by the claw-coupling 2, on -which thev tooth foot, disconnection of the motor- 8 and ythus that `the is located and turned by the pedalarm 1, I

not until said pedalarm, after having passed4 the middle position M, Fig. 6 is moved further on in forward going direction.

If the carriage is intended for driving in a hilly ground, it can be provided with a separate pedal 18 for actuating the brake,` only, and for instance being placed on the said coupling shaped p art 19.

Having thus described my invention I claim 1. A device for actuating the coupling and the brake in automobiles comprising means for connecting the pedalarm of the motorcoupling with the brake-bar of the brake, a coupling shaft and means for connecting the saidipedalarm with thesaidcouplingshaft during the operation of the motorcoupling and for disconnecting it from the Said shaft for operating the brake.

l 2. 1n devices for actuating the coupling arid the brake in automobiles,l the combination by Ineansfor` connecting the pedalarm of the motor-coupling with the brake-bar, and of a coupling shaft, with a claw-coupling, one part of which being connected with the said pedalarm and lodged on a fixed mu?, having a threaded part and surrounding the said coupling-shaft, while the other part of the said claw-coupling having a threaded inner portion surrounds the said muil', and is adapted to be displaced in longitudinal direction, Whenthe said couplingshaft is turned substantially as set forth for Ythe purpose specified. 3. In devices for actuating the couplin and the brake -in automoblles, the combination of means for connecting the pedalarm of a motor-coupling with the brakepling is released, makes a restraining eHect` Without preventing the edalarm from being turned for o erating t e brake, While the pedalarm is orought back by the springs belonging to the motor-coupling and the brake, substantially as set forth.

In .witness whereof I have hereunto set my hand.

' VICTOR J ESSEN. 

